Extreme heat is impacting states across the country. See maps of high temperature forecasts and heat index levels.

More than 100 million Americans are under heat alerts as the extreme temperatures that have smothered the Midwest this week ...

Multiple states are under extreme heat warnings, advisories or watches on July 23, according to the National Weather Service.

Millions of Americans are under weather advisories this week. See which major cities have heat, flood or storm advisories.

Relief is finally on the horizon after a punishing summer of heat. Here’s how cool it will get and how long it will last.

Around 11 million Americans are under flood alerts as a "ring of fire" weather pattern will continue to impact the eastern two-thirds of the country through the weekend.

For people under the sweltering influence of a heat dome, the weather pattern can be excruciatingly tedious to endure, ...

The Centers for Disease Control and Prevention (CDC) says that extreme heat can lead to heat-related illnesses, especially ...

About half the country is under active heat advisories again on Tuesday, affecting more than 168 million Americans, according ...

The storms could be accompanied by hail or damaging winds and have the highest chance of forming on Tuesday evening.